Revise Twitter linking to include official Symbol twitter account(s)

[orisdorch]

Links to the Twitter account presently point to @NEMOfficial rather than @thesymbolchain. The |twitter| variable is defined in: source/_templates/include/social.html

Consider breaking this out into multiple official twitter variables - i.e. using a subset of these:
|twitterMain| https://twitter.com/thesymbolchain
|twitterSyndicate| https://twitter.com/SymbolSyndicate
|twitterLingFranc] https://twitter.com/aBermudaCompany
|twitterFushichou| https://twitter.com/TheFushichou
|twitterNEM| https://twitter.com/nemofficial

If opting to link to multiple twitter accounts, will also need to update all pages referencing the |twittter| variable:
https://github.com/symbol/symbol-docs/search?q=twitter

[GodTanu]

From the outside looking in, the NEM protocol is irrelevant and any links involving NEM should be removed.
LingFranc and Fushichou, which are not related to the development, should also be excluded.

[orisdorch]

From the outside looking in, the NEM protocol is irrelevant and any links involving NEM should be removed. LingFranc and Fushichou, which are not related to the development, should also be excluded.

Thank you for your response! I agree, the guide is a resource for Symbol end users and developers, and should stick to that scope. I was thinking of gaps I see in outsider visibility to the broader picture, but the website will be a better place for this to address this.